package com.atguigu.gulimall.order.web;

import com.atguigu.common.exception.NoStockException;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.OrderConfirmVo;
import com.atguigu.gulimall.order.vo.SubmitOrderResponseVo;
import com.atguigu.gulimall.order.vo.OrderSubmitVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;
@Controller
public class OrderWebController {
    @Autowired
    OrderService orderService;

    /**
     * 去结算确认页
     * @param model
     * @param request
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/toTrade")
    public String toTrade(Model model, HttpServletRequest request) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo=orderService.confirmOrder();
        model.addAttribute("orderConfirmData",confirmVo);
        return "confirm";
    }
    /**
     * 下单功能
     *
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){

        try {
            SubmitOrderResponseVo responseVo =orderService.submitOrder(vo);

            //下单失败回到订单也重新确认订单信息
            System.out.println("订单提交数据..."+vo);
            if(responseVo.getCode()==0){
                //下单成功转到支付页
                model.addAttribute("submitOrderResp",responseVo);
                return "pay";
            }else {
                String msg="下单失败;";
                switch (responseVo.getCode()){
                    case 1: msg +="订单信息过期，请刷新重新提交";break;
                    case 2: msg +="商品价格发生变化，请确认后再次提交";break;
                    case 3: msg +="库存锁定失败，商品库存不足";break;

                }
                redirectAttributes.addFlashAttribute("msg",msg);
                return "redirect:http://localhost:9001/toTrade";


            }
        }catch (Exception e){
            if(e instanceof NoStockException){
                String message = ((NoStockException) e).getMessage();
                redirectAttributes.addFlashAttribute("msg",message);
            }
            return "redirect:http://localhost:9001/toTrade";
        }
    }
}
